4140 High Tensile Steel | Interlloy | Engineering Steels
4140 High Tensile Steel 4140 is a 1% chromium molybdenum medium hardenability general purpose high tensile steel generally supplied hardened and tempered in the tensile range of 850 1000 Mpa (condition T).4140 is now available with improved machinability, which greatly increases feeds and/or speeds, while also extending tool life without adversley affecting mechanical properties.